Chirambidzo 21

Nzvimbo yekuisa haina nzvimbo yekushanda

Matanho: Kunyangwe kuiswa kwacho kuchinetsa pakutanga, zvakakosha kufunga nezvebasa remushandisi kwenguva refu paanenge achiisavharuvhukuti ishande. Kuti ivhure uye ivharevharuvhuZviri nyore, zvinokurudzirwa kuisa vhiri reruoko revharuvhu kuitira kuti rienderane nechipfuva (kazhinji mamita 1.2 kubva pasi peimba yekuvhiyira). Kuti zvisashande zvakanaka, vhiri reruoko revharuvhu rekumisa rinofanira kutarisa kumusoro kwete rakatsetseka. Mavharuvhu emuchina wemadziro nezvimwe zvinhu zvinofanira kupa nzvimbo yakakwana kuti mushandisi amire. Zvine njodzi kushanda mudenga, kunyanya kana uchishandisa acid-base, zvinhu zvine njodzi, nezvimwewo.

Chirambidzo 22

Mavharuvhu akagadzirwa nezvinhu zvinokanganisa kuputsika

Matanho: Pakuisa nekuvaka, chenjera uye usarova mavharuvhu emhando yebrittle-material. Tarisa vharuvhu, specs, uye mamodheru usati waisa, uye tarisa chero kukuvara, kunyanya pahunde yevharuvhu. Hunde yevharuvhu inogona kunge yakakombama panguva yekutumira, saka itendeutse kakati wandei kuti uone kana iri. Chenesa vharuvhu kubva mumarara zvakare. Kuti udzivise kukuvadza vhiri reruoko kana hunde yevharuvhu paunenge uchisimudza vharuvhu, tambo inofanira kusungirirwa paflange pane chimwe chezvinhu izvi. Kubatana kwepaipi yevharuvhu kunofanirwa kucheneswa. Kuti ubvise iron oxide chips, mud jecha, welding slag, nezvimwe zvinhu, shandisa mweya wakamanikidzwa. Zvidimbu zvikuru zvemavharuvhu, zvakaita sewelding slag, zvinogona kuvharira mavharuvhu madiki uye kuita kuti asashande pamwe nekukwenya nyore nyore pamusoro pevharuvhu. Kuti udzivise kuungana muvharuvhu uye kupindirana nekuyerera kwemedium, sealing packing (line hemp plus lead oil kana PTFE raw material tape) inofanira kuputirwa netambo yepipe usati wabatanidza screw valve. Iva nechokwadi chekusunga mabhaudhi zvakaenzana uye zvakaenzana paunenge uchiisa mavharuvhu ane flange. Kuti vharuvhu isanyanya kudzvanywa kana kutsemuka, flange yepombi neflange yevharuvhu zvinofanirwa kunge zvakafanana uye zvine nzvimbo yakakwana yekubuda. Zvinhu zvisina kusimba uye mavharuvhu asina simba rinoda kutarisirwa zvakanyanya. Mavharuvhu ane plange anofanira kutanga aiswa plange, oteverwa nekuvhurwa kwakakwana kwezvikamu zvekuvhara, uye pakupedzisira, kusungirirwa kusina simba.

Chirambidzo 23

Vharuvhu haina nzira dzekuchengetedza kupisa uye dzekuchengetedza kutonhora

Matanho: Mamwe mavharuvhu anofanirwawo kuva nezvinhu zvekudzivirira zvekunze zvekuchengetedza kupisa nekutonhora. Dzimwe nguva pombi yemhepo inopisa inowedzerwa kune insulation layer. Rudzi rwevharuvhu runofanira kuchengetwa ruchidziya kana kutonhora zvinoenderana nezvinodiwa nekugadzirwa. Mudzidziso, kuchengetedza kupisa kana kutotevera kupisa kunodiwa kana chinhu chiri mukati mevharuvhu chikanyanya kutonhora, izvo zvinoderedza kushanda zvakanaka kwekugadzira kana kukonzera kuti vharuvhu iome. Saizvozvowo, kana vharuvhu yaonekwa, izvo zvisina kunaka pakugadzirwa kana zvichikonzera chando nezvimwe zvisingadiwe, vharuvhu inofanira kuchengetwa ichitonhora. Zvinhu zve insulation zvinotonhora zvinosanganisira cork, perlite, furo, purasitiki, diatomaceous earth, asbestos, slag wool, glass wool, perlite, diatomaceous earth, nezvimwewo.

Chirambidzo 24

Musungo wemhepo hauna kuiswa nepasspass

Matanho: Mamwe mavharuvhu ane zvishandiso uye nzira dzekudzivirira hutachiona pamusoro pezvinhu zvekudzivirira. Kuti zvive nyore kugadzirisa hutachiona, nzira yekudzivirira hutachiona yakaiswa. Kune mamwe mavharuvhu akaiswa nenzira yekudzivirira hutachiona. Mamiriro, kukosha, uye zvinodiwa pakugadzirwa kwevharuvhu zvinosarudza kana nzira yekudzivirira hutachiona inofanira kuiswa.

Chirambidzo 25

Kurongedza hakutsiviwi nguva dzose

Matanho: Mamwe machira ekuisa mavharuvhu aripo anofanira kutsiviwa nekuti haashande zvakanaka kana kuti haaenderane nechinhu chiri kushandiswa. Bhokisi rekuisa zvinhu rinogara richizadzwa nekurongedza kwakajairika uye vharuvhu inoonekwa kune zviuru zvemachira akasiyana-siyana, zvisinei kana vharuvhu iri kushanda, kurongedza kunofanirwa kugadziriswa kuti kuenderane nechinhu chacho. Dzvanya kurongedza panzvimbo nekufamba-famba mudenderedzwa. Musono wedenderedzwa rega rega unofanirwa kunge uri madhigirii makumi mana nemashanu, uye misono yemadenderedzwa inofanira kunge yakaparadzana nemadhigirii zana nemakumi masere. Chikamu chezasi chegland chinofanira kudzvanywa kusvika pakadzika kwakakodzera kwekamuri yekurongedza, iyo inowanzova 10–20% yehudzamu hwese hwekamuri yekurongedza. Kureba kwemusono kunofanira kufunga nezveizvi. Kona yemusono yemavharuvhu ine zvinodiwa zvakasimba i30 degrees. Misono yedenderedzwa inosiyana nemadhigirii zana nemakumi maviri kubva kune imwe neimwe. MaO-rings matatu erabha (rabha yechisikigo inodzivirira alkali isina simba iri pasi pe60 degrees Celsius, nitrile rabha inodzivirira mafuta ari pasi pe80 degrees Celsius, uye fluorine rabha inodzivirira corrosive media dzakasiyana-siyana dziri pasi pe150 degrees Celsius) anogonawo kushandiswa, zvichienderana nemamiriro ezvinhu, kuwedzera kune zvataurwa pamusoro apa. MaNylon bowl rings (inodzivirira ammonia uye alkali iri pasi pe120 degrees Celsius), mapolytetrafluoroethylene rings ane laminated (inodzivirira corrosive media iri pasi pe200 degrees Celsius), uye mamwe mafillers akaumbwa. Putira layer ye polytetrafluoroethylene tepi isina kugadzirwa kunze kweasbestos packaging yenguva dzose kuti uwedzere kuvharwa uye kuderedza kuparara kwevalvu kubva pakushanda kwemagetsi. Kuti nzvimbo yacho irambe yakaenzana uye isanyanya kufa, tenderedza valvu stem uchidzvanya packing. Usatsvedzerere paunenge uchisimbisa gland nekuedza kwakasimba.